Portolan Capital Management, LLC Portfolio Holdings

Portolan Capital Management, LLC

  • $1.22 Billion
  • Q1 2025

Portolan Capital Management, LLC has filed its 13F form on May 15, 2025 for Q1 2025 where it was disclosed a total value porftolio of $1.22 Billion distributed in 109 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Lantheus Holdings, Inc. with a value of $84.6M, Slm Corp with a value of $44.4M, Kratos Defense & Security Solutions, Inc. with a value of $43.4M, Genius Sports LTD with a value of $42.9M, and Modine Manufacturing CO with a value of $37.9M.

Examining the 13F form we can see an decrease of $97.1M in the current position value, from $1.32B to 1.22B.

Portolan Capital Management, LLC is based out at Boston, MA

Below you can find more details about Portolan Capital Management, LLC portfolio as well as his latest detailed transactions.

Portfolio value $1.22 Billion
Consumer Cyclical: $278 Million
Technology: $242 Million
Healthcare: $226 Million
Industrials: $129 Million
Financial Services: $126 Million
Communication Services: $126 Million
Consumer Defensive: $65.8 Million
Energy: $22.1 Million
Other: $9.39 Million

Stock Holdings Table

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$5.3B
$84.6 Million 6.92% of portfolio
867,309
Q1 2025 Added 6.73%
$8.1B
$44.4 Million 3.63% of portfolio
1,512,274
Q1 2025 Added 67.93%
$4.79B
$43.4 Million 3.55% of portfolio
1,460,730
Q1 2025 Added 8.36%
$1.91B
$42.9 Million 3.5% of portfolio
4,281,255
Q1 2025 Added 39.47%
$4.62B
$37.9 Million 3.1% of portfolio
493,575
Q1 2025 Added 50.07%
$4.85B
$33.2 Million 2.72% of portfolio
406,499
Q1 2025 Added 188.36%
$40.9B
$32.1 Million 2.63% of portfolio
474,658
Q1 2025 Added 99.33%
$5.93B
$31.9 Million 2.61% of portfolio
1,731,408
Q1 2025 Added 54.97%
$465M
$25.9 Million 2.12% of portfolio
5,519,206
Q1 2025 Added 2.99%
$428M
$25.3 Million 2.07% of portfolio
1,265,223
Q1 2025 Added 62.92%
$5.96B
$24.8 Million 2.03% of portfolio
395,252
Q1 2025 Added 71.85%
$2.07B
$24.4 Million 1.99% of portfolio
1,529,691
Q1 2025 Added 104.41%
$910M
$24 Million 1.96% of portfolio
3,292,276
Q1 2025 Added 43.17%
$3.34B
$23.8 Million 1.94% of portfolio
478,406
Q1 2025 Added 12.74%
$444M
$22.1 Million 1.8% of portfolio
438,795
Q1 2025 New
$3.05B
$20.9 Million 1.71% of portfolio
1,021,297
Q1 2025 Reduced 21.52%
$325M
$19.8 Million 1.62% of portfolio
820,973
Q1 2025 Added 66.8%
$828M
$19.9 Million 1.62% of portfolio
2,628,728
Q1 2025 Added 38.12%
$531M
$19.5 Million 1.59% of portfolio
789,156
Q1 2025 Added 16.72%
$832M
$19.4 Million 1.59% of portfolio
626,358
Q1 2025 New
$194M
$19.3 Million 1.58% of portfolio
2,963,397
Q1 2025 Added 14.51%
$4.09B
$19.2 Million 1.57% of portfolio
286,557
Q1 2025 Added 24.48%
$3.1B
$19.2 Million 1.57% of portfolio
988,992
Q1 2025 Added 8.1%
$577M
$19.1 Million 1.56% of portfolio
372,999
Q1 2025 Reduced 0.07%
$19B
$17.4 Million 1.42% of portfolio
247,107
Q1 2025 Added 24.86%
$15.1B
$16.4 Million 1.34% of portfolio
492,422
Q1 2025 Added 53.6%
$2.35B
$16.4 Million 1.34% of portfolio
2,243,548
Q1 2025 Added 3.22%
$11.8B
$15.6 Million 1.28% of portfolio
709,576
Q1 2025 Added 44.82%
$4.2B
$14.8 Million 1.21% of portfolio
388,844
Q1 2025 Reduced 26.44%
$14.8B
$13.9 Million 1.14% of portfolio
45,068
Q1 2025 Added 216.29%
$763M
$13.8 Million 1.13% of portfolio
184,224
Q1 2025 Reduced 11.63%
$812M
$13.9 Million 1.13% of portfolio
778,296
Q1 2025 Reduced 15.15%
$28.7B
$12.4 Million 1.01% of portfolio
134,546
Q1 2025 New
$6.73B
$12.3 Million 1.01% of portfolio
81,002
Q1 2025 Added 248.43%
$306M
$12.1 Million 0.99% of portfolio
1,276,612
Q1 2025 Added 29.44%
$8.36B
$11.3 Million 0.93% of portfolio
199,867
Q1 2025 Added 0.52%
$14.5B
$11 Million 0.9% of portfolio
352,257
Q1 2025 Added 2.35%
$1.3B
$11 Million 0.9% of portfolio
439,850
Q1 2025 Added 43.27%
$2.97B
$10.9 Million 0.89% of portfolio
112,513
Q1 2025 Reduced 46.0%
$630M
$10.6 Million 0.86% of portfolio
952,162
Q1 2025 Added 119.65%
$2.22B
$10.1 Million 0.82% of portfolio
741,852
Q1 2025 Added 11.66%
$2.14B
$10 Million 0.82% of portfolio
331,955
Q1 2025 Added 68.48%
$4.96B
$9.47 Million 0.77% of portfolio
438,020
Q1 2025 Reduced 38.77%
$1.16B
$9.31 Million 0.76% of portfolio
880,427
Q1 2025 Reduced 38.4%
$19.2B
$9.29 Million 0.76% of portfolio
280,908
Q1 2025 Reduced 35.47%
$666M
$9.21 Million 0.75% of portfolio
1,894,080
Q1 2025 Added 13.59%
$2B
$9.07 Million 0.74% of portfolio
53,224
Q1 2025 Added 322.65%
$37.9B
$8.86 Million 0.72% of portfolio
42,729
Q1 2025 Added 0.55%
$573M
$8.59 Million 0.7% of portfolio
776,182
Q1 2025 New

Summary

  • Portfolio
  • No. of Stocks 109
  • Current Value $1.22 Billion
  • Prior Value $1.32 Billion
  • Filing
  • Period Q1 2025
  • Filing Date May 15, 2025
  • Form Type 13F-HR
  • Activity in Q1 2025
  • New Purchases 21 stocks
  • Additional Purchases 53 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 35 stocks
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